<html xmlns="http://www.w3.org/1999/xhtml">
<style>
html::first-line { }
</style>
<script>
function doe() {
  document.getElementsByTagName('caption')[0].removeAttribute('style');
}
window.onload=doe;
</script>

<caption style="float: left;"></caption>
<span style="float: right;"></span>
</html>
